HK Army 15ci / 4500psi Aluminum Compressed Air Tank - Black
HK Army 15ci / 4500psi Aluminum Compressed Air Tank - Black
HK Army 15ci / 4500psi Aluminum Compressed Air Tank - BlackHK Army 15ci / 4500psi Aluminum Compressed Air Tank - Black

HK Army 15ci / 4500psi Aluminum Compressed Air Tank - Black

$124.99

The HK Army 15ci / 4500 PSI Aluminum HPA Tank delivers compact, high-pressure performance for paintball markers and airsoft HPA systems. Its durable aluminum construction, consistent 800 PSI output, integrated gauge, and lightweight 22-ounce design make it ideal for streamlined, field-ready setups.


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Benefits:

  • Compact 15ci HPA tank design Compact 15ci HPA tank design
  • High-capacity 4500 PSI performance High-capacity 4500 PSI performance
  • Consistent 800 PSI regulator output Consistent 800 PSI regulator output
  • Durable aluminum construction Durable aluminum construction
  • Ideal for paintball and airsoft HPA builds Ideal for paintball and airsoft HPA builds

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HK Army Aerolite 68/4500 Carbon Fiber Tank

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HK Army 15ci / 4500 PSI Aluminum Compressed Air Tank – Black

Compact, durable, and built for high-pressure performance, the HK Army 15ci 4500 PSI Aluminum HPA Tank delivers dependable air capacity without the bulk of a full-size paintball tank.

Product Overview

Designed for lightweight paintball and airsoft HPA setups, this compact compressed air tank combines a 15-cubic-inch capacity with a 4500 PSI fill rating. Its durable aluminum construction offers a practical alternative to larger carbon-fiber systems, while the included high-pressure regulator supplies a consistent 800 PSI output. The streamlined black finish makes it an excellent match for compact markers, tapped airsoft pistols, and mobile HPA rifle builds.

Features and Benefits

  • Compact 15ci size reduces weight and overall setup length

  • 4500 PSI capacity provides more usable air than traditional 3000 PSI aluminum tanks

  • Durable aluminum cylinder withstands demanding field use

  • Standard high-pressure regulator delivers consistent 800 PSI output

  • Integrated pressure gauge makes checking remaining air simple

  • Dual O-ring design supports a secure, reliable seal

  • Rubber fill-nipple cover helps protect the fill valve from dirt and debris

Specifications

  • Brand: HK Army

  • Capacity: 15 cubic inches

  • Maximum fill pressure: 4500 PSI

  • Regulator output: 800 PSI

  • Construction: Aluminum

  • Weight with regulator: 22 oz

  • Outside diameter: 2⅛ inches

  • Color: Black

Compatibility

Compatible with paintball markers and HPA airsoft systems designed for a standard screw-in, high-pressure 800 PSI air source. When using a remote line or secondary airsoft regulator, confirm that every component is rated for the tank’s output pressure.

What’s Included

  • HK Army 15ci aluminum HPA tank

  • High-pressure regulator with gauge

  • Rubber fill-valve cover

Installation

Thread the regulator into a compatible ASA or approved HPA regulator connection. Hand-tighten only and fill exclusively with compressed air from a 4500 PSI-rated source.

Common Product Questions

Find quick answers about our airsoft products, shipping and policies.

Can LA Airsoft install this part for me?

Yes. We can build and upgrade Hi-Capas, AAP platforms, and rifles. Choose your base gun and parts, then add the appropriate tech service.

The current custom-build service states that builds are normally completed in approximately 3 to 5 days, with the team reviewing the selected parts for compatibility.

Do I need tools or gunsmithing?

That depends on the upgrade. Simple external parts may be straightforward, but internal upgrades can require disassembly, reassembly, adjustment and testing.

If you are not comfortable working inside your airsoft gun, our team offers professional tech and custom-build services.

How quickly will my order ship?

Orders without preorder items are typically packed the same day when placed before 4:30 p.m. Central Time. Please note that occasional delays can occur during especially busy periods or when staffing is limited.

How should I maintain this product?

Regular maintenance helps preserve performance and reliability. Keep the product clean, follow the manufacturer’s lubrication instructions, and properly manage batteries, gas systems, and internal components. More advanced repairs or internal servicing should be handled by an experienced airsoft technician.

Will this part fit my platform?

Compatibility is product-specific. Check the brand, model, size, and platform named in the product description, such as Tokyo Marui Hi-Capa 4.3 or 5.1, AAP-01, Umarex/VFC Glock, or a particular AEG gearbox type.

Similar-looking parts are not always interchangeable, so contact our team with your exact model if you are unsure.

Will this part increase my FPS?

Not every upgrade increases FPS. Some parts are designed primarily for reliability, cycling speed, weight reduction, or gas efficiency. When a product has a tested FPS claim, it should be stated in the listing.